From Wikipedia:

Dinesh Das

He was born in his maternal home at Chetla in Alipore, a locality on the bank of Adi Ganga creek. When he was in Class IX, at around 15 years age, he became involved in secret revolutionary Indian independence movement. He also became involved in Mohandas Karamchand Gandhi's Salt Satyagraha movement which hampered his formal education. However he passed Matriculation Examination in 1930, and I.A. in 1932 from the South Suburban College. In 1933, he was admitted to... Read More